Trolley-pole.



UNITED STATES P TENT firm,

SILAS VERNOY, OF TORONTO, CANADA.

TROLLEY-POLE.

SPECIFICATION .forming part of Letters Patent No. 636,189, dated October31, 1899.

Application filed January 20, 1899. Serial No. 702,784. (No model.) i

To all whom it may concern.-

Be it known that I, SILAS VERNOY, of Toronto, in the Province of Ontarioand Domin ion of Canada, have invented a new and Improved Trolley-Pole,of which the following is a full, clear, and exact description.

This invention relates to trolley=poles and attachments thereto fordouble wire electriccar systems; and the object is to provide a deviceof this character that may be readily applied to cars employing thepresent devices at a comparatively small cost, as well as to new cars.

I will describe a trolley-pole and its attach= ments embodying myinvention and then point out the novel features in the appended claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a partial section and a partial side elevation of atrolley-pole and attachments embodying my invention. Fig. 2 is a sectionon the line 2 2 of Fig. 1. sectional view of the upper portion of thepole, and Fig. 4 is an inner face view of the turntable portionsemployed.

-Referring to the drawings, 1 designates a tubular trolley-pole, of theusual material, having a cross-head 2 at its lower end, provided withtrunnions 3, having bearings in uprights 4, attached to a base-plate'o.The trolleys carried by the pole are held in yielding engagement withthe wires by means of springs 6, which surround the cross-head 2 andhave one end connected to said crosshead and the other ends connected tothe uprights.

Attached to the upper end of the pole 1 is a coupling 7, havingdivergent tubular members 8,-into which the lower ends of the tubes 9are engaged. These tubes 9 are engaged at the upper end With couplings10, with which the shanks 11 of the blocks 12 engage. These shanks andthe blocks are insulated from the coupling-stem, as plainly shown inFig. 3.

Fig. 3 is a.

the parts 8, 9, and 10 may be considered as a single arm, the two armsof course divergent, as shown.

Secured to the under side of the base 5 is a ring 17, of insulatingmaterialsuch, for in stance, as indurated fiber. Seated in this ring atdiametrically opposite points are segmental contact-plates 18. The ring17 is designed to turn upon a ring 19, of insulating material, securedto the roof 20 of the car in any suitable manner, and in this ring 19are seated segmental contact-plates 21, adapted to be engaged by thecontact-plates 18. The conductor 22 has electrical connection with thetrolley 13 and extends downward through the pole and through an openingin the cross head 2 to connection with one of the contactplates 18, anda conductor 23 provides connections between the trolley l t'and theother contact-plate 18.

From the contact-plates 21 wires 24 and 25 extend to a connection withthe motor of a car or to wires in the roof having connection with themotor. A king bolt 26 extends through the base-plate 5 and also throughthe roof or platform of the car and is suitably insulated from both.

The contact-plates 18 and 21 being quite long, the pole is well adaptedfor preserving the electrical connections while a car is going aroundcurves and when the pole is laterally deflected to a considerable extentrelatively to the car. In other words, from this construction it isevident that independent connections are maintained at all times betweenthe trolleys and the wires 24 25, leading to the motor, no matter on howsharp or how long a curve the car may be running. In ordinary trolleysystems in which the rail or track is used for the return-currenttrouble is caused by the leakage of the currentfrom the rails, whichresults in the destruction by electrolysis of neighboring water and gaspipes and the steel foundations of large buildings and also causing agreat loss to the railway company by the leakage of electricity throughthe ground. As I employ a separate wire for the incoming current and aseparate wire for the outgoing current no difliculty of this kind willbe experienced.

Parts of my invention may be changed in form and proportion withoutdeparting from 2. A trolley-pole and connections for a double-wireoverhead electric-car-line system, comprising a tubular pole, a coupling0n the upper end of said pole and having divergent tubular members,tubes connected in said members, couplings engaging the upper ends ofsaid tubes, trolley-blocks supported in said last named couplings butinsulated therefrom, and trolleys mounted in the blocks, substantiallyas specified.

SILAS VERNOY.

Witnesses:

JOHN G. RIDOUT, A. J. COLBOURNE.

